Finally, you can play This Is the Police in a brand-new sandbox mode: everyone who has finished the story can jump right into an endless madness. Infinite number of days, leaderboard, new randomly-generated investigations, dynamic difficulty, 200+ new crimes, and more! Survive as long as you can, and soon we're going to find out the best police chief on the planet (or the most corrupt one).
And yes, you can rename your cops from the initial set. But try to be reasonable. Fartman Jr. isn't a name.